Home / 116,989.46-161,445.48-66,013.01

Finding the Fourth Proportional to 116,989.46, 161,445.48 and 66,013.01

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Solution

The fourth proportional to 116,989.46, 161,445.48 and 66,013.01 is: 91,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,989.46 : 161,445.48 = 66,013.01 : x
  2. Step 2: Convert to fraction form
    116,989.46/161,445.48 = 66,013.01/x
  3. Step 3: Cross multiply
    116,989.46x = 161,445.48 × 66,013.01
  4. Step 4: Simplify right side
    116,989.46x = 10,657,502,085.69
  5. Step 5: Solve for x
    x = 10,657,502,085.69/116,989.46
  6. Step 6: Final answer
    x = 91,097.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.